secret train station under chatham hill england

did anyone know there is a secret second railway station under the hillside in chatham kent the entrence is under the train bridge at the bottom of chatham hill and also there is a major network of tunnels and a hospital under kithener barracks in chatham this is fact i have been there documented proof is in the engineers museum in chatham does anyone know anymore about the aera

I knew off them as members off my family are in the forces and they have said many things about them.

I will have to talk to them to see if its ok to post info on it as with there jobs i don`t want grief.

As with there positions the are i can say extremely high up the ladder.

i'd like to hear more about chatham , used to live there and work oposite the barracks.